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• Remove non-alphanumerical characters excluding space

  - by Cecco

  I have this statement: String cap = Regex.Replace(winCaption, @"[^\w\.@-]", ""); that transforms "Hello | World!?" to "HelloWorld". But I want to preserve space character, for example: "Hello | World!?" to "Hello  World". How can I do this?

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• Regular Expression

  - by Malcolm

  I want regular expression that checks that the string doesnt start with an empty space. Some what like this i want to do : Is the below ValidationExpression right for it : string ValidationExpression = @"/^[^ ]/"; if (!String.IsNullOrEmpty(GroupName) && !Regex.IsMatch(GroupName, ValidationExpression)) { }

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• When writing a form submit to a file, strip line breaks and commas

  - by bccarlso

  I have a form with a textarea in it. I log the results to a text file on the server, but I would like to strip out any line breaks a user would put in the textarea, as well as any commas that would interfere with importing the comma-delimited log text file into Excel or something for later use. I think this has to do with regex, but I'm no expert and could use some help. Or maybe there is an easy PHP function that will do it?

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• how can i use regex to get a certain string of a file

  - by chun

  Hi with linux bash shell , how can i use regex to get a certain string of a file by example: for filename *.tgz do "get the certain string of filename (in my case, get 2010.04.12 of file 2010.01.12myfile.tgz)" done or should I turn to perl Merci frank

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• jQuery question

  - by Fuxi

  hi all, i'm having the following string <img alt="over 40 world famous brandedWATCHES BRANDs to choose from " src="http://www.fastblings.com/images/logo.jpg"></strong></a><br> i want to define a regex pattern like <img alt="(.+?)" src="http://(.+?).(jpg|gif)"> but as u can see the target strings has a linebreak in the alt attribute - so how can i incorporate this? the rule should be like "anything in the alt-attribute including linebreaks" thx

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• How to protect yourself from XSS when you allow people to post RAW embed codes?

  - by Axel

  Hi. Tumblr and other blogging websites allows people to post embeded codes of videos from youtube and all video networks. but how they filter only the flash object code and remove any other html or scripts? and even they have an automated code that informes you this is not a valid video code. Is this done using REGEX expressions? And Is there a PHP class to do that? Thanks

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• Regular Expression to Match YouTube Watch URL

  - by dododedodonl

  Hi, I've got this regex (I'm not good at it) /http://www.youtube.com/watch?v=[a-zA-Z0-9_]/i it has to match any youtube watch url (because youtube always redirects to that domain)... It should match http://www.youtube.com/watch?v=iMXCqgWjpL8 but it doesn't. Can someone help me? Regard, dodo

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• java regular expression

  - by BSingh

  I am trying to write a regular expression for somethin like s1 = I am at Boston at Dowtown s2 = I am at Miami I am interested in the words after at eg: Boston, Downtown, Miami I have not been successful in creating a regex for that. Somethin like > .*? (at \w+)+.* gives just Boston in s1 (Downtown is missed). it just matches the first "at" Any suggestions

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• How to remove a text from a variable? (php)

  - by Glister

  I have a variable $link_item, it's used with echo and gives the strings like <span class="name">Google</span>http://google.com How to remove "<span class="name">Google</span>" from string? It should give just "http://google.com". Heard it can be done with regex(), please help.

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• Javascript Replace text in string

  - by Tegan Snyder

  I'm having some troubles getting regex to replace all occurances of a string within a string. **What to replace:** href="/newsroom **Replace with this:** href="http://intranet/newsroom This isn't working: str.replace(/href="/newsroom/g, 'href="http://intranet/newsroom"'); Any ideas? Thanks, Tegan

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• preg_match_all to parse an xml-like attribute string

  - by Rob

  I have a string like so: option_alpha="value" option_beta="some other value" option_gamma="X" ...etc. I'm using this to parse them into name & value pairs: preg_match_all("/([a-z0-9_]+)\s*=\s*[\"\'](.+?)[\"\']/is", $var_string, $matches) Which works fine, unless it encounters an empty attribute value: option_alpha="value" option_beta="" option_gamma="X" What have I done wrong in my regex?

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• Date validation in PHP

  - by Rachel

  What would the regex expression that would go into preg_split function to validate date in the format of 7-Mar-10 or how can I validate a date of format 7-Mar-10 in PHP Thanks.

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• regex find content question

  - by jeff

  Trying to use regex refind tag to find the content within the brackets in this example using coldfusion joe smith <[email protected]> The resulting text should be [email protected] Not having any luck. Any suggestions?

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• preg_match_all image source

  - by David

  I have the following regex expression which is to extract the source of any img tag in HTML. /(<img).*(src\s*=\s*"([a-zA-Z0-9\.;:\/\?&=\-_|\r|\n]{1,})")/isxmU However, it doesn't appear to be matching the following: <IMG SRC='http://www.mysite.com/pix/lens/mtf/CAEF8512L.gif'> How can I build it to match this as well?

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• PHP preg_replace html comments with empty space

  - by phpmatt

  Hi Guys, I have a bit of php code like this: $test = "<!--my comment goes here--> Hello World"; Now i want to strip the whole html comment from the string, i know i need to use preg_replace, but now sure on the regex to go in there. Can anybody help? Thanks

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• Match everything except for specified strings

  - by Alfred

  I know that the following regex will match "red", "green", or "blue". red|green|blue Is there a straightforward way of making it match everything except several specified strings?

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• Split string by HTML entities?

  - by user366124

  My string contain a lot of HTML entities, like this &#x22;Hello&nbsp;&lt;everybody&gt;&nbsp;there&#x22; And I want to split it by HTML entities into this : Hello everybody there Can anybody suggest me a way to do this please? May be using Regex?

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• .Net Regular Expression

  - by xzerox

  Alright so I want to grab the information on a website thats between [usernames] and [/usernames] I know how to get the string but how would I use regex to only have the information in the middle. Remember I am going to be having more then one thing on the page.

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• Find a regular expression that matches a string?

  - by Mirai

  I need a model for finding all of the regular expressions that would match a particular string. Basically, I need an algorithm for doing what I do to generate a regex search string from some pattern. My purpose for this to create a list of potential regular expressions from a selection of text and order that list from least specific (i.e. string of characters with abitrary length) to most specific (i.e. the string itself) to be used in text editor.

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• Check for a valid domain name in a string?

  - by demos

  I am using python and would like a simple api or regex to check for a domain name's validity. By validity I am the syntactical validity and not whether the domain name actually exists on the Internet or not.

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• How to check if a character is a non-word boundary

  - by michael

  In Java regular expression, it has "\B" as a non-word boundary. http://java.sun.com/j2se/1.4.2/docs/api/java/util/regex/Pattern.html If I have a 'char', how can I check it is a non-word boundary? Thank you.

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• Regular Expression problem

  - by Yatendra Goel

  I want a regex to find the following types of strings: http://anything.abc.tld http://anything.abc.tld/ where abc - abc always remains abc anything - it could be any string tld - it could be any tld (top-level-domain) like .com .net .co.in .co.uk etc. Note: The url must not contain any other thing at the end, means http://anything.abc.tld/xyz is not acceptable.

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• Hot to remove text from variable? (php)

  - by Glister

  I have a variable $link_item, it's used with echo and gives the strings like <span class="name">Google</span>http://google.com How to remove "<span class="name">Google</span>" from string? It should give just "http://google.com". Heard it can be done with regex(), please help.

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• Regular expression to extract text between two sets of characters (Javascript)

  - by optician

  I would like to extract some text between two points in a string, in Javascript Say the string is "start-extractThis-234" The numbers at the end can be any number, but the hyphens are always present. Ideally I think capturing between the two hypens should be ok. I would like the result of the regex to be extractThis

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• How to split this string in c#?

  - by melaos

  hi i'm really not used to the split string method in c# and i was wondering how come there's no split by more than one char function? and my attempt to try to split this string below using regex has just ended up in frustration. anybody can help me? basically i want to split the string below down to aa**aa**bb**dd^__^a2a**a2a**b2b**dd^__^ into aa**aa**bb**dd a2a**a2a**b2b**dd and then later into aa aa bb dd a2a a2a b2b dd thanks!

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